Printing textile fabrics



Oct. 27, 1931'. rF. ADLER PRINTING TEXTILE FABR/ICS `Filed Jan. 22. 19292 Sheets-sneer.

Oct. 27,. 1931. F. ADLER PRINTING TEXTILE FABRICS Filed Jan.

22. 1929 2 Sheets-Sheer.

Patented Oct. 27, 1931 PATE-Nr ori-ICE FRIEDRICH ADLE, 0F HAMBURG,GERMANY mamme TEXTILE raiaarcs 'r Application med January 22, 1929,Serial Nyo. 334,284, and in, yGermany April 18, 1928.v l

A process is known for printing'fabrics with'wax, wax substitutes,paraffin or similar resisting means, `according to a pattern. Such aprocess consists primarily in placing the fabric to bev printed upon afixed or solid layer of wax, and printing it right through with a heatedmetal stamp which bears the A pattern.

The layer of wax may be constructed as a cylinder and may co-operatewith a rollershaped printing forme.

This process 'has been further improved by employing, instead vofthefixed layer of wax, a fabric of any convenient length, which issaturated with a resist. These two known' processes furnish the basisfor carrying out the printing of fabrics with a pattern, either. bymanual labour or mechanically. 1

The present invention relates -to a device by which the mechanicalprocess is arranged the printing apparatus as a whole, and

Fig. 2 represents on a larger scale the particular wax spreader employedwith this ap paratus.

Figure 3 is a longitudinal section through the bundle of laminated feltand the corrugaied sheet-metal boxes of the wax spreader, an Figure4-shows the laminated felt when the Asupply of wax is throttled.

-Y The printing process for which the Vappara# tus according to thepresent invention serves is carried o ut in the following mannerTheffabric to be printed upon, together' with the so-called resist web,that is to say, together with a web of fabric saturated with 59. aresist such s wax or the like, passes around Fig.'1 is adiagrammaticvrepresentation ofy tion, a plurality o printing cylinders are-60 usedaccording to the invention, which are arran ed in arevolver-like'manner,and can accor gly be easily interchanged at the working position. i

In Fi e 1 are shown three printing cyl- 65 inders anddz, whicharemounted upon a revolver D, and by means of the latter can be broughtinto the upper working position insuccession. The printing cylinders d,Z1 and` d2 are 70 heated by steam which is supplied through a vlivesteam pipe 1 to one end of the hollow arbor of the revolver D, to theother end of which is connected a waste pi e 2, rotary packings beingprovided at eac end of the arbor in the well-known manner. The steam ispassed from the hollow arbor of the revolver tothe cylinders d, d1, d2and the condensed water returned thereto by means of pipes 21, 22, 23,24, 25, 26 in open communis0 cation with the interior ofthe arbor andconnected to the ends of the respective cylinders, rotary packings beingalso provided at ends of the cylinders for the said pipes.

Upon a roller a is wound the fabric b to be 85. printed. The fabricpasses` over a guide roller c, around a heated printing cylinder d, overa roller g, and is wound up on a roller j. synchronously with the web offabric to be printed there runs an endless web-e, which is saturatedwith the resist, and which is hereinafter referred to as the resist web.The

latter' is guided by a roller c1 to the roller c2,

then runs 'around the printing cylinder ai along with the web b for atleast half the periphery thereof, and is then deflected by rollers c3and f and runs past heated tubes F1, F, F3, and through a meltingtroughK. i

In association with this melting trou h the resist web passes under awax sprea er 10 order to enhance the uniformit in the contact of the webb to be printed an the resist web e with the pattern rolle-r d, toemploy special auxiliary applying means travelling with the resist andfabric webs. Such an auxiliary means may for example consist of an.endless band, which accompanies the fabric and resist webs in theworking direction and presses both the webs a ainst the printing rollerd. A construction or this purpose is shown in Figure 1. j v

A compressing means, consisting of an end- .lessband a running overrollers`0'2, c3 and 0*,

' presses the resist web fe and the web of fabric l b against theprinting cylinder d; A roller 'c is slidably and resiliently supportedin a casing or guide V, and regulates the tensions or -pressure of theband z. The rollersl c,

c2, o8 and grare also supported in slide blocks and m1. The compression"blocks and the slide blocks are located in 4a framework y, which is letinto a standard y1 in such a manner as4 to be ,slidable in a verticaldirect-ion. Two toothed racks enable the slide blocks and w1 to bedisplaced to right and left in a known manner and to compress the springbolts y2, which hold the framework y firmly and lock, it `in thestandard y2 during the printing operation. As soon as the springs ofthese bolt-s are compressed, counterweights w1 and 'w2 act upon theframework, which is now unlocked, and raise it. The space thereby leftvacant enables the three printing cyl- 'inders d, d1, and d2, whicl arearranged in a yrevolver-bke manner, to rotate, these cylinders being forthe purpose of permitting of continuous wor g with different patternrollers. is now possible for example, while the printinlg cylinder d isin the working position, t'o c ange the cylinder d1, which has lquittedthe working position, for a fresh cylinder, without interrupting theprinting process.

-Such a printing process proceeds in the following lmanner The printingcylinder is provided on its cylindrical surface with patterns in relief,and is heatedin any convenient manner. The

pressureapplying means, consisting for in- A .stance of a calico band,produces during the rotation an intensive contact ofthe raised 4patternswith the fabric and the resist web.

The raised patterns on the roller d therefore cause the liquefied resistof the resist web e to be absorbed by the web of fabric b. The

web b thus printed through, may pass direct- 1y to a dye bath or the,like instead of pass- 4trough p, the wax content of which is passed onto the resist web bylaminated felt strip n. In order to keep the waxliquid, the trough p is providedwith a steam pipe coil q.

Moreover between the layers of felt n are located sheet-metal boxes 1',in which electrical heating units are lodged, as shown in Figure 3. Adouble-armed lever s, which is ,rotatable about a pivot 81, and projectsto the outside of the trough, so as to be capable of being actuated fromthe outside, acts upon a grating t. The closure of the grating tregulates the supply ofwax by squeezing the layers of felt and thus"shutting olf to a greater orless extent the path of the wax between theboxes 7'.

This` regulating is effected in the following manner: The felt strips n,are :freely suspended from gir-ders or carri'ers nl, between boxes r andoval rollers t1, which engage by pins t2 in slots t3 in the grating t.When the grating t and the rollers t1 are in the position shown in Fig.2, the laminations fn. hang down freely and permit aA maximum quantityof wax to flow down them. If the grating t is moved in the direction` ofthe arrow t0- wards the left by actuating the lever s, the grating,owing to the rods t2, rotates the oval rollers t1, which consequently,as shown in Figure 4,' compress the felt laminations 'located betweenthem. The thereby4 diminished in size.

The boxes, as,y will be seen from the diagrammatic view in Figure 3, areconstructed as corrugated sheet-metal boxes, so that passages remain forthe wax between the laminations and the boxes.

The w'ax spreader is so adjusted that the layers of felt only touchquite lightly theresist web which glides past -beneath it, and proby theic'e. cooler -m or other similar cooling' means suchas cold watercylinders and ,the like. A sheet-metal closure u, which is lidableunderneath the bundle of layers-.n in guides u1, is intended, before o rshortly after path of the wax is v starting, to` prevent the influx ofwax completely, and to take up the wax residues which have alreadypassed the grid closure t before it comes into operation. Steam pipes Wmay also, advantageously be passed through the interior of the trough p.l

In order that the resist web may remain in reliable contact with thefelt laminations, a

1. Apparatusfor printing webs of fabricl according to a pattern,comprising a printing cylinder, a printing forme in relief on thejconvexsurface of the rinting cylinder, means I for heatin the cyhnder, meansfor passing the web to eprinted u on uniformly around at least half theperiphery of the printing cylinder, a resist web, and means for passfing the resist web around the printing cylinder along with the web offabric.

2;. Apparatus for printing webs of fabric according to a pattern,comprising a print' .ing cylinder, a printing forme in relief on theconvex surface of the printing cylinder,

means for heating the cylinder,`means for passing the web to be printedupon uniformly around at leasthalf the periphery of the printingcylinder, a resist web in theform of an endless band,'and means forpassing the resist web around the printing cylinder along with the Webof fabric. 3. Apparatus for printing webs of fabric according'toapattern, comprising a printing cylinder,/a printing forme in relief onthe convex surface of the printing cylinder, means for heating thecylinder, means for passing the web to be printed upon uniformly aroundat least half the periphery of the printing cylinder, a resist web inthe form of 4an endlessband, a melting trough for wax,

Aa wax spreader,'a cooling device, means for passing the resist webaround the printing cylinder along with the web of fabric, and

means for passing the resist web, after the printing operation, throughthe melting trough, under the wa'x spreader, and lover the coolingdevice.

4. Apparatus for printing webs of fabric according to a pattern,comprising a printing cylinder, a print-ing forme in relief on the con-vvex .surface of the printing cylinder, means for heating'. theJcylinder, means for passing the web to be printed upon uniformly'aroundatV least half the periphery ofthe printing cylinder, a resist web,means for passing the resist web around the printing cylinder along withthe web of fabric, and auxiliary applying means for supplementarily anduniformly pressing the resist web and the web of fabric against theprinting cylinder.

5v. Apparatus for printing Webs of fabric according to a, pattern,comprising a printing cylinder, a printing forme in relief on the convexsurface of the printing cylinder,

means for heating the cylinder, means for passing the web to be printedu on uniformly around at least half the periphery of the printingcylinder, a resist web, 'means for passing the resist web around theprinting cylinder along with the web of fabric, and resiliently heldcalico bands guided in the working direction for supplementarily anduniformly pressing the resist web and the web of fabric against theprinting cylinder.

6. Apparatus for printing webs of fabric according to a pattern,comprising a printing cylinder, a printing forme'inv relief on theconvex surface of the printing cylinderf means for heating the cylinder,means for passing the web to be printed upon uniformly y around part ofthe periphery of the printing cylinder, a resist web 'in the form of anendless band,'a melting trough for wax, a wax spreader, a coolingdevice, means for passing the resist web around the printing 'cylinderalong with the web o'f fabric, means for passing the resist web, afterthe printing operation, through the melting trough, under the waxspreader, and over the cooling device, andauxillary applying meanscomprismg resiliently held calicobands guided uniformly v in the Workingdirection for supplementarily and uniformly pressing the resist web andihe'web of fabric against the printing cylin- 7. Apparatus for printingWebs of fabric according to a. pattern, comprising a revoluble cylinderholder, a plurality of printing cylinders exchangeably mounted thereon,the cylinder holder being adapted to enable any one of the cylindersmounted thereon to be moved into the printing position at will,

printing formes bearing different patterns in one of the cylindersmounted thereon to be moved into the printing position at will, printingformes bearing differentpatterns relief on the convex surfacesfof thevarious printing cylinders, cylinder'heating means,

rollers for guiding the web .to be printed upon uniformly around atleast hal-f the periphery of the printing cylinder that is in theoperative position, a resist web, rollers for guiding the resist webaround the rinting cylinder along with the web of abric, and movablesupporting means for thesaid guiding rollers, adapted to enable theguidi-'accordmg to a pattern,comprising a revoluing rollers to be movedout of the vvay when the cylinder holder is to be rotated to change thepattern.

.9. Apparatus for printing webs of fabrlc ble cylinder holder, aplurality of printing cylinders exchangeably mounted thereon, the

` cylinder' holder being adapted to enable any one`of the cylindersmounted thereon to be moved into the rinting position at will, printingformes Bearing diii'erent atterns in relief on the convex surfaces of te 1various printing cylinders, cylinder heating means, rollers forguiding the web to' be printed upon uniformly round at least half theperiphery of the printing cylinder that is in the operative position, areslst web, rollers for guiding the resist web around the printingcylinder along with the web of fabric, auxiliary applying means such asre- -siliently held calico bands guided uniformly in the workingdirection for supplementary and uniforml the web of fa ric a ainst theprinting cylinder, rollers for gulding the said auxiliary applylngmeans, -and movable supporting means for the said guiding rollers,adapted to enable the guiding rollers to be moved out .I ofthe Way whenthe cylinderholder is to be rotated to change the pattern.

In testimony whereof I have signed my .name to this specilication.

FRIEDRICH ADLER.

pressing the resistweb and

